1. List the species present at equilibrium in a solution with the following composition:

NH4Cl = 0.0200 mol/L NaOH = 0.0430 mol/L

H2SO4 = 0.0150 mol/L NaNO3 = 0.0100 mol/L

2. Write the n equations for n unknowns describing the equilibrium composition of

this system.

3. Make a spreadsheet and use Excel’s Solver function to determine the equilibrium

pH and concentrations of all species in this solution.

2fe + 3h2so4 -> fe2(so4)3 + 3h2

it is necessary to balance equations in order to get the proper amount of reactants as well as products in order not to make a miscalculation.

you cannot change the subscripts as that would change the substance itself. for instance, diatomic elements such as h2 only have the subscript two when a gas. another example would be so4, if you were to change the subscript, the element would no longer be sulfate.

we change the coefficients instead as that only changes the number of molecules rather than the substance itself.

hope this !

answer; natural resources;